They aren’t, actually. It’s high-quality non-photorealistic rendering, and it eats quite some graphics bandwidth. Another thing is the large amount of dynamic objects which are created when slicing stuff. Only dedicated graphics cards can cope with the amount of objects to draw each frame. We generally recommend a graphics card which costs about 100 bucks upwards.Sorry, but all graphics chips made by Intel are unsupported. The game runs on Intel HD 2000/3000/4000 or later graphics chips, but the gameplay won’t be as smooth as with a dedicated graphics card, and you have to limit the resolution the game is running at.